Metal ion separation and recovery from environmental sources using various flotation and sorption techniques

Zamboulis, D.; Peleka, Effrosyni; Lazaridis, Nikolaos K.; Matis, K. A.

doi:10.1002/jctb.2552

Cited by 116 publications

(41 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The metal ions separation from environmental sources by sorptive flotation has been recently reviewed in-depth [6].…”

Section: Trends In Green Chemistrymentioning

confidence: 99%

“…Therefore, the resultant highly turbulent mixing conditions favoured biosorption. The metal ions separation from environmental sources by sorptive flotation has been recently reviewed in-depth [6].…”

Section: Trends In Green Chemistrymentioning

confidence: 99%

“…Floatability and hydrophobicity, however, are inter-related, focusing often on the application of collectorless flotation. Attention may be paid to a series of relevant reviews on the area [3][4][5][6]. Below a brief survey is given on selected recent papers for different applications of flotation, from a really vast literatureshowing well (as we believe) that chemistry contributes in various ways in flotation research.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Research Activities Related to Flotation Process

Ka¹

2015

Trends in Green chem

View full text Add to dashboard Cite

Flotation initially originated from the field of mineral processing. The importance of this process to the economy of the whole industrial world is considered to be enormous. Since for many years various particulate solids besides minerals have been extracted by using this effective gravity separation method with many interesting applications in the treatment of wastewater, looking for sustainability. Certain significant activities in flotation research were reviewed in the present, with main focus in the contribution of physical chemistry to flotation; i.e. zeta-potential measurements, contact angle etc., including examining the role of bubble and particle size played with regard to the process. Alternative bubble generation methods were examined, such as electro flotation and dissolved-air flotation-the latter technique is mainly intended for water treatment applications.Keywords: Hydrophobicity, Dissolved-air flotation, Electroflotation, Biosorption, Waste water IntroductionLet us start this chapter by saying that flotation is really an old process: the historian Herodotus in ancient Greece is probably the first person that described a process similar to flotation, in the 5 th century B.C., for the separation of gold particles from sand using fatty substances. And later, in the 15 th century A.D., the Arabs used resins for the selective separation of azurite (a copper mineral) from gangue. These are considered to be the main historical roots of flotation, which is based on the idea of applying rising gas bubbles as the transport medium [1]. The attachment of bubbles to particles transfers the solids from the body of water to the surface.Hydrophobicity refers to the property of a molecule, cluster, micro-organism or mineral surface that is repelled from a mass of water. Further, it was noted that the term hydrophobicity (a Greek word) has been differently understood in various fields [2]. Floatability and hydrophobicity, however, are inter-related, focusing often on the application of collectorless flotation. Attention may be paid to a series of relevant reviews on the area [3][4][5][6]. Below a brief survey is given on selected recent papers for different applications of flotation, from a really vast literatureshowing well (as we believe) that chemistry contributes in various ways in flotation research. Coal beneficiation is one of the most effective methods for removing minerals, such as gangues and pyrite, and pollutants such as sulfur, before the burning of coal.In general, the beneficiation process of low rank coals (about the 50% of the world's total coal deposits) is more difficult to achieve than that of bituminous and/or anthracite coals. Lignite is the most important mineral commodities for Greece, according to Anastassakis [7]; its reserves approach to about 4000 Mt. It was pointed out that in the future effective reagents should be invented for effective flotation process (being a physico-chemical one) [8]. A better understanding of the surface chemistry of sulfidewater interfaces was tried...

show abstract

“…The metal ions separation from environmental sources by sorptive flotation has been recently reviewed in-depth [6].…”

Section: Trends In Green Chemistrymentioning

confidence: 99%

Section: Trends In Green Chemistrymentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Research Activities Related to Flotation Process

Ka¹

2015

Trends in Green chem

View full text Add to dashboard Cite

show abstract

“…In the case of filtration, filter blockage can occur (Soares 2011). Flotation has also been described to aid in separation (Zamboulis et al 2011). This separation process is based on the affinity of cells to air bubbles; bubbling air through the medium leads to an accumulation of cells on the surface where they can be removed.…”

Section: Treatment With a Hybrid Processmentioning

confidence: 99%

Bioremediation of industrial effluents containing heavy metals using brewing cells of Saccharomyces cerevisiae as a green technology: a review

Soares

2011

Environ Sci Pollut Res

129

View full text Add to dashboard Cite

The release of heavy metals into the environment, mainly as a consequence of anthropogenic activities, constitutes a worldwide environmental pollution problem. Unlike organic pollutants, heavy metals are not degraded and remain indefinitely in the ecosystem, which poses a different kind of challenge for remediation. It seems that the "best treatment technologies" available may not be completely effective for metal removal or can be expensive; therefore, new methodologies have been proposed for the detoxification of metal-bearing wastewaters. The present work reviews and discusses the advantages of using brewing yeast cells of Saccharomyces cerevisiae in the detoxification of effluents containing heavy metals. The current knowledge of the mechanisms of metal removal by yeast biomass is presented. The use of live or dead biomass and the influence of biomass inactivation on the metal accumulation characteristics are outlined. The role of chemical speciation for predicting and optimising the efficiency of metal removal is highlighted. The problem of biomass separation, after treatment of the effluents, and the use of flocculent characteristics, as an alternative process of cell-liquid separation, are also discussed. The use of yeast cells in the treatment of real effluents to bridge the gap between fundamental and applied studies is presented and updated. The convenient management of the contaminated biomass and the advantages of the selective recovery of heavy metals in the development of a closed cycle without residues (green technology) are critically reviewed.

show abstract

“…The efficiency of combined "biosorptive flotation" process has been proved for the treatment of toxic metals' mixture, even when applying a multi-cycle biosorption-flotation operation [2]. A flowsheet of the proposed (two-stage countercurrent) biosorptive flotation process was presented [9].…”

Section: Introductionmentioning

confidence: 99%

New Biosorbent Materials: Selectivity and Bioengineering Insights

Kyzas

Matis

2014

Processes

View full text Add to dashboard Cite

Many researchers have studied the biosorption of different pollutants. However, a quite limited number of works focus on selectivity, which may be characterized as specific property for each biosorbent. Two main criteria need to be adopted for the selection and synthesis of modern biosorbents, such as their rebinding capacity and selectivity for only one target, molecule, ion, etc. Selective biosorption could be achieved using in synthesis an innovative technique termed molecular imprinting; the idea applied through specific polymers (Molecular Imprinted Polymers (MIPs)) was used in many fields, mainly analytical. In the present work, also isotherm and kinetic models were reviewed highlighting some crucial parameters, which possibly affect selectivity. A critical analysis of the biosorption insights for biosorbents, mostly selective, describes their characteristics, advantages and limitations, and discusses various bioengineering mechanisms involved.

show abstract

Metal ion separation and recovery from environmental sources using various flotation and sorption techniques

Cited by 116 publications

References 68 publications

Research Activities Related to Flotation Process

Research Activities Related to Flotation Process

Bioremediation of industrial effluents containing heavy metals using brewing cells of Saccharomyces cerevisiae as a green technology: a review

New Biosorbent Materials: Selectivity and Bioengineering Insights

Contact Info

Product

Resources

About